My Toshiba won't boot up at all. Can't Safe Mode. Only end up getting "Registry_Error" message with the number STOP: 0X00000051. I looked up that number and it is supposed to be a Windows 2000 error message. Anyone know what it means and what can be done about it?

If you don't have any Emergency Recovery Disks, you can try booting into "Last Known Good Configuration" WILL POST FOR FOOD.

Have you tried system restore from the command Prompt in safemode ? To do so, power up your computer and use the"F8" key to boot to: Safe Mode with Command Prompt. At the command prompt type: c:\windows\system32\restore\rstrui.exe Click "Enter", and System Restore should open, from there restore your system to an earlier time or day. I agree; computing.net does need an edit button.

I have tried all of it. System Restore, F8, backup disks, upload new OS of XP small Business......ain't nothing gonna work.....what else can I do? Is it worth even bothering to send it back to Toshiba? I managed to pull the HD and make it portable and CAN access the data. Could it be a fried motherboard? How do you diagnose it? Thanks, Jon